Mental Maths Questions Worksheet for Class 5

Mental maths lesson 19: Mixed mental challenge · Set 540 · 40 questions

How to do it in your head (Look first): A 9, 19 or 99 → round and adjust. Two close numbers → count up (or near doubles when adding). × or ÷ by 4 or 8 → double or halve; other sums → split into tens and ones.

1. 1.85 + ? = 100
2. 2.Best estimate of 545 + 796? (a) 1300 (b) 1100 (c) 1500
3. 3.29 laddoos are packed in boxes of 4. How many laddoos are left over?
4. 4.216 ÷ 3 =
5. 5.37 + 51 =
6. 6.What is the remainder when 57 is divided by 4?
7. 7.A film starts at 2:05 and ends at 4:40. How many minutes long is the film?
8. 8.26² =
9. 9.You buy a notebook for ₹399 and pay with a ₹500 note. How much change do you get, in rupees?
10. 10.54 − 29 =
11. 11.50% of ₹420 =
12. 12.13² =
13. 13.A film starts at 8:30 and ends at 10:50. How many minutes long is the film?
14. 14.Best estimate of 440 + 548? (a) 1100 (b) 900 (c) 700
15. 15.183 ÷ 3 =
16. 16.74 + 77 =
17. 17.85 + 8 =
18. 18.55 − 27 =
19. 19.40 × 4 =
20. 20.11² =
21. 21.5 + ? = 10
22. 22.A cricket match starts at 2:15 and the first innings ends at 3:10. How many minutes did the innings last?
23. 23.23² =
24. 24.54 + 81 =
25. 25.819 ÷ 9 =
26. 26.308 ÷ 4 =
27. 27.88 ÷ 8 =
28. 28.216 ÷ 9 =
29. 29.91 × 9 =
30. 30.16 + 18 =
31. 31.75 + 6 =
32. 32.74 + ? = 100
33. 33.707 + 99 =
34. 34.Best estimate of 41 × 72? (a) 28000 (b) 2800 (c) 280
35. 35.Best estimate of 58 × 17? (a) 120 (b) 1200 (c) 12000
36. 36.63 ÷ 3 =
37. 37.66 + 84 =
38. 38.592 ÷ 8 =
39. 39.228 ÷ 4 =
40. 40.69 − 34 =

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